211111344321 has 8 divisors (see below), whose sum is σ = 288027880800. Its totient is φ = 137467852032.

The previous prime is 211111344317. The next prime is 211111344401. The reversal of 211111344321 is 123443111112.

211111344321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211111344321 - 2² = 211111344317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211111344291 and 211111344300.

It is not an unprimeable number, because it can be changed into a prime (211111344721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818260896 + ... + 818261153.

It is an arithmetic number, because the mean of its divisors is an integer number (36003485100).

Almost surely, 2^211111344321 is an apocalyptic number.

It is an amenable number.

211111344321 is a deficient number, since it is larger than the sum of its proper divisors (76916536479).

211111344321 is a wasteful number, since it uses less digits than its factorization.

211111344321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636522095.

The product of its digits is 576, while the sum is 24.

Adding to 211111344321 its reverse (123443111112), we get a palindrome (334554455433).

The spelling of 211111344321 in words is "two hundred eleven billion, one hundred eleven million, three hundred forty-four thousand, three hundred twenty-one".